Group together calls from the same person?

Is there a way to group together calls in the hub that come from the same person. Right now it shows every call either outgoing or incoming as a separate notification in the hub. Would be nice if all calls from the same person would be in one notification with a drop down.

I was more interested in cleaning up the hub in the same way emails can be grouped into a conversation so all sent and receive is only one notification until clicked on and then it shows all messages. But I guess it's not possible with calls.